ROHM Launches a MOSFET with Industry-Leading* Wide-SOA for Automotive Safety Functions and Protection Circuits

Santa Clara, CA and Kyoto, Japan, Sept. 15, 2026 (GLOBE NEWSWIRE) -- ROHM Semiconductor today announced it has developed the RS4P063BPHZG, a 100V MOSFET optimized for automotive safety functions and protection circuits. The new product achieves industry-leading* Wide-SOA (Safe Operating Area) across a broad voltage range in the standard HPLF5060 (5060-size) package widely used in automotive applications. By incorporating a design that effectively suppresses secondary breakdown, it delivers approximately 5 times the SOA tolerance of standard equivalent-sized products under VDS=100V and PW=100μs. This contributes to greater reliability in automotive applications subject to momentary high-power loads, including airbag inflator ignition circuits and seatbelt pretensioner drive circuits.